Low-temperature absorption spectra and electron structure of HoFe₃(BO₃)₄ single crystal

dc.contributor.authorMalakhovskii, A.V.
dc.contributor.authorGnatchenko, S.L.
dc.contributor.authorKachur, I.S.
dc.contributor.authorPiryatinskaya, V.G.
dc.contributor.authorGudim, I.A.
dc.date.accessioned2018-01-19T18:47:13Z
dc.date.available2018-01-19T18:47:13Z
dc.date.issued2017
dc.description.abstractPolarized absorption spectra of HoFe₃(BO₃)₄ single crystal in the range of 8500–24 500 cm−¹ were studied as a function of temperature beginning from 2 K. The ground and excited electron states of Ho³⁺ were identified. The abrupt changes of the spectra at the reorientation phase transition at 4.7 K were observed. The exchange splitting of some excited states were revealed and measured. They changed at the reorientation phase transition. Several vibronic transitions were observed. The splitting of absorption lines corresponding to the C₂ local symmetry of the Ho ion was not observed. Moreover, spectra of some absorption bands correspond to splitting in the cubic crystal field. There are some absorption lines, whose polarization cannot be explained both in D₃ and C₂ local symmetries. Some lines appear or disappear as a result of the transition from the easy axis to the easy plane state of the crystal. All these observations testify to the substantial changes of the local magnetic and structural properties in the excited states of the Ho³⁺ ion and to the strong influence of the magnetic moments orientation on the polarization of the electron transitions.uk_UA
dc.description.sponsorshipThe work was supported by the Russian Foundation for Basic Researches grant 16-02-00273 and by the President of Russia grant No. Nsh-7559.2016.2.uk_UA
dc.identifier.citationLow-temperature absorption spectra and electron structure of HoFe₃(BO₃)₄ single crystal / A.V. Malakhovskii, S.L. Gnatchenko, I.S. Kachur, V.G. Piryatinskaya, I.A. Gudim // Физика низких температур. — 2017. — Т. 43, № 5. — С. 764-771. — Бібліогр.: 25 назв. — англ.uk_UA
dc.identifier.issn0132-6414
dc.identifier.otherPACS: 78.40.Ha, 71.70.–d
dc.identifier.urihttps://nasplib.isofts.kiev.ua/handle/123456789/129485
dc.language.isoenuk_UA
dc.publisherФізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН Україниuk_UA
dc.relation.ispartofФизика низких температур
dc.statuspublished earlieruk_UA
dc.subjectК 70-летию со дня рождения С.Л. Гнатченкоuk_UA
dc.titleLow-temperature absorption spectra and electron structure of HoFe₃(BO₃)₄ single crystaluk_UA
dc.typeArticleuk_UA

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